1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf406444838a95407f7417b8bf4da27e2f9bc5af0ff9efac39d96b8c2e0634cb8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4d47535-2555-49eb-98ae-936dd0ebaec8.json and https://artists.proofprofile.net/proofs/artist/d4d47535-2555-49eb-98ae-936dd0ebaec8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42120b8706d666e52e057ebbebf4a00615be90b477d83f8c42806e3b00ed00d7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3672201030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9990c21da521bd770151ed0bc8d26673ae559180d94c629268ca507f2e12dea7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3672109010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed8f19954c2d3d4302862ebe2c88dfa443b3d162f0d1019fa5688efcb54b21b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3672201080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405baa6cf7078c2c223b1081b5dc62a56c4f488b4ad58ceaa59bb94fed914224. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:18:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3672104010.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7871263b15755712aafda5f27ecacc5f0db04d577cd4035b482a833112456a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3672201010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e83572de6fc283303f1d8a4c8dd857e06c074c33ca22c12965e61aefec40f86. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3672201020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4110b8047bf33398a69cc59af5462f3cc7f7be0402de875b2e0a10c2000ddb. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3672201050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b0db0ca09163b79e026c87e8bf51f4c310be62aee203489c236043920db266. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3672115010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb00b2ee18e4b717777369887206019be6fed3f108e0eff592ee8eb5dc108f61. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671604050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7bdbf30c924b3a65ebe9205a690bb11482d9d87d689cda8f47075b2bc8a930. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671604010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646badb3e1feb2324695fd090c4d868b9c1184f548bef54a76a852ff32b64449. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671604020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a8c649523621f8122d39a2d3a24af1c10aeef3cbffc22ca3e22b5ee50460e8. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dbcca00759d23529bc7bd9ddad89b776d0b4d1ac0f32613f3a193f50638989. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671604110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217cf8e131a4e28f89bd18c9f69710c7d76835499e4117093f4de10fd8df2ccd. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671509010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154da4c04df41bf23eddcf75626e04403b45fa5117e4547ca03f1e37280976eb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671314020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf8692addf6f48f37af86dd40b2fca229428bd6415af244aa9c9f5964168560. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671314070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1397a06b28f1bb07b9317052d117fd9f38e9205b47b73b60c6c7d5dd17243e1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671313010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edd0bb271eadaafaba327b07069fb389acece7daaab8d7855842846bb150308. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671314040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6852400d8a47588f07b2dd3f5ca2d5f15bced47d20b407ef0495dec35176ef47. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671310010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afe1e2b4de753de9b04649f29f97c012fc42d37d896fb5a3b0ca7b52505d892. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671314060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630759d5b468796af5924a348196c8d371f9e243291b827acd36040e458796b7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671314080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ba708052be56cbb1d5817defc49f008944aa60f009038b8e95ed8d2a44ccb0. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671314110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a152ebf77dd3fb92e79ba4cda317b270acb4f6d7b8ad6526d771d3c9f0361a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671910010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fffb2eb773b0e5e9c87dca16d112fd640a342a974d7dc6c71af006dad4c6d1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671611010.
Livin Legend Feat. Klish, Hell Rell & Rsp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa82581ccf6982562d8cefa4b66467c57b63c05d90a427d439c5f36b0d24296. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:38:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO2YX1502010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39f58e55822377b989f6d19850d9c048ad01c477ce834311e4260f12e5898fc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671423060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c783b40240d1e96fef84fc08b2eee624b7cefc10a888e92e6c2eea382ef921d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO3671415030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2660dc66d79adee78433d6e0c31ed8dcb08bda1cc66858ee40fc0177b60a47f7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOI761307010.
Fyring Fighting F***ing Rmx (feat. Girson & Onklp)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713f504fdd7f4afce4a86d71ebcbdddfe94de6a031e79ed7809b69aa53b1b04c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOWAT1304051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b27d83c1ab2e0fe838e5f8933ba6b5543dda5148d094670548873986a19fa74. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NONFM1501050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e5593bd7230337be190b44b1e7d88ab68dc696022d445b33f0200a602c3df3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NONFM1901200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0f7dda38db197a46f22ecc810ab3d83c28079d82134e0ece08e8b8c6f78ab6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NONFM1602090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5350727cdde7b58b43cf72e0a5514480891e0d09c7ab072fb638a99f839711d4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAJR1700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4752f17d00653c36047a43abb65366ea8ed46b235ab5f4c2610b4361d8017d4a. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NONFM1501080.